Waste Water Engineering If the depletion of oxygen is found to be 5 ppm after incubating a 2.5% solution of sewage sample for 5 days at 21°C, B.O.D. of the sewage is 200 ppm 50 ppm 100 ppm 150 ppm 200 ppm 50 ppm 100 ppm 150 ppm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Bio-chemical oxygen demand (BOD) for the first 20 days in generally referred to Initial demand All of these Carbonaceous demand First stage demand Initial demand All of these Carbonaceous demand First stage demand ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering A well oxidized sewage contains nitrogen mainly as Free ammonia Nitrites None of these Nitrates Free ammonia Nitrites None of these Nitrates ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Drop manholes are the manholes Without manhole covers Without entry ladders Having drains at different levels With depths more than 3.5 m Without manhole covers Without entry ladders Having drains at different levels With depths more than 3.5 m ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If the peak discharge of a storm water drain (S.W. Drain) is expected to exceed 150 cumecs, the free board to be provided, is 100 cm 50 cm 80 cm 90 cm 100 cm 50 cm 80 cm 90 cm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The most effective arrangement for diverting excess storm water into a natural drainage, is Overflow weir None of these Leaping weir Siphon spill way Overflow weir None of these Leaping weir Siphon spill way ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS